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Finding the Fourth Proportional to 55,673.80, 83,510.70 and 51,737.20

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Solution

The fourth proportional to 55,673.80, 83,510.70 and 51,737.20 is: 77,605.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,673.80 : 83,510.70 = 51,737.20 : x
  2. Step 2: Convert to fraction form
    55,673.80/83,510.70 = 51,737.20/x
  3. Step 3: Cross multiply
    55,673.80x = 83,510.70 × 51,737.20
  4. Step 4: Simplify right side
    55,673.80x = 4,320,609,788.04
  5. Step 5: Solve for x
    x = 4,320,609,788.04/55,673.80
  6. Step 6: Final answer
    x = 77,605.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.